Boilermag isolation valve leaking

[fezster]

I know the isolation valves supplied with magnetic filters can be poor quality and this one on my boilermag is leaking from the spindle. It only seems to happen first thing in the morning when there's a pool of water underneath it. It took some time to identify it as the source, as it doesn't always leak (although it is dripping right now).




Is there an alternative I can buy to replace this? Preferably a better quality one which doesn't leak. I searched 28mm to 1" isolation valve, as I believe that is the size on the boilermag side (the copper is 28mm), but didn't find anything I can source locally. I also couldn't find an identical replacement part.

Any temporary fixes I can do to stop it dumping water every morning??

 

[cross thread]

sure its the spindle ? looks like a run mark from higher up

 

[fezster]

Good spot - actually, it's the isolation valve on the other side which is also leaking.

 

[Taylortwocities]

@fezster sorry to dig up old topic.

I have exactly the same problem with my Boilermag isolation valve. It also leaks first thing in the day, also one of the valves doesn’t shut off, so I can’t even remove the filter for cleaning.
Did you get a solution? Maybe I need to buy a whole new Boilermag, but it’s only 4 years old.

 

[fezster]

You can buy replacement isolation valves, but they aren't particularly cheap. If you are confident enough or are getting somebody in, I'd buy some good quality lever valves, and use those instead. Eg.

https://www.travisperkins.co.uk/Altecnic-Intaball-Compression-BallValve-Blue-Lever-22mm/p/510138

I'd had enough of the valves and installed a TF1 Omega instead, which is flushed out without having to isolate it.